8858197866 has 32 divisors (see below), whose sum is σ = 20288931840. Its totient is φ = 2525710896.

The previous prime is 8858197823. The next prime is 8858197937. The reversal of 8858197866 is 6687918588.

It is a junction number, because it is equal to n+sod(n) for n = 8858197797 and 8858197806.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196086 + ... + 236993.

It is an arithmetic number, because the mean of its divisors is an integer number (634029120).

Almost surely, 2^8858197866 is an apocalyptic number.

8858197866 is an abundant number, since it is smaller than the sum of its proper divisors (11430733974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8858197866 is a wasteful number, since it uses less digits than its factorization.

8858197866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433578.

The product of its digits is 46448640, while the sum is 66.

The square root of 8858197866 is about 94117.9996918762. Note that the first 3 decimals coincide. The cubic root of 8858197866 is about 2069.1014845314.

The spelling of 8858197866 in words is "eight billion, eight hundred fifty-eight million, one hundred ninety-seven thousand, eight hundred sixty-six".